Wear and Revision Operation of H. D. P. Artificial Femoral Head

Abstract

High-Density Polythylen (H. D. P.) artificial femoral head had been applied to 35 cases of the fracture of femur neck, but many of them had brought down unsuccess within 2 years after replacement operation. By revision operation of 6 cases of them, it was confirmed that unsuccess was caused of the wear of H. D. P. head. Histology showed that fine particles of the weared H. D. P. induce the foreign body inflammation granuloma in the capsule and in the neighbor bone tissue. Bone destruction comes first to proximal region of the femur and finally to the acetabulum.